syntax error

[Applepie]

HI..
when I started my named, the following errors showed up

Jan  9 00:27:47  named[4232]: Zone "90.217.207.in-addr.arpa" (file
207.217.90): No default TTL set using SOA minimum instead
Jan  9 00:27:47 marici named[4233]: Ready to answer queries.

but, I have the following records, so what am I missing?


@       IN      SOA     ns.mydomain.com. hostmaster.mydomain.com. (
                                                 1
                                            10800
                                             3600
                                            604800
                                            86400)

                     IN      NS     ns.myydomain.com.
thanks!

apple